130results about How to "Flexible programming" patented technology

The invention provides an automotive anti-collision radar multi-target detecting method and system. The method comprises the steps of emitting two types of triangular waves with different modulation periods in an alternating mode and acquiring echo data, carrying out windowing processing, carrying out distance dimension FFT and speed dimension FFT, carrying out modulo processing to obtain frequency spectrum of two types of echo waves, carrying out target paring to obtain a spectral line of the same target of the two echo waves, calculating distance and speed of each target, and judging target distance and speed obtained by the two echo waves through a tolerance function to obtain a final target. A radio frequency emitting and receiving part of the system comprises a radar sensor and an intermediate frequency processing module, and a data processing part comprises a modulus, a modulus converting module and a central control processing module FPGA. The FPGA comprises a modulation signal producing sub-module, an echo wave signal acquisition sub-module, an algorithm sub-module and a control sub-module. The modulation waves and corresponding algorithms effectively remove false targets and improve accuracy that multiple moving targets are detected under strong noise. A hardware system is simplified in structure and easy to achieve.

A Modeling, Design, Analysis, Simulation, and Evaluation (MDASE) aspects of gyrocompassing in relation to Far-Target Location (FTL) systems include a Gyrocompass Modeling and Simulation System (GMSS). The GMSS is a modularized software system which has four major components: the 6DOF Motion Simulator, the IMU Sensor Simulator, the Gyrocompass System and Calibration Process Simulator, the Gyrocompass System Evaluation and Analysis Module. Each module has one or two graphic user interfaces (GUIs) as user interfaces for simulation components selection and parameter setting. The realization of the GMSS is based on any computer platforms, for it is written in high level language and tools and is portable. The stochastic signal analysis and sensor testing and modeling tools includes a suite of generic statistical analysis software, including Allan Variance and PSD analysis tools, which are available to every GMSS module and greatly enhanced the system functionality.

A packet processing device includes multiple processor cores and memory connected to the multiple processor cores, upon reception of a load request of a program, selects a processor core to which the program has not yet been loaded, loads the program to the selected processor core, retains first association information that associates attribute information specified by the load request with the processor core to which the program has been loaded, upon reception of the packet, specifies the attribute information corresponding to the received packet, and transfers the received packet to the processor core corresponding to the specified attribute information.

The remote supervision system includes information acquisition module, human-computer interaction and storage module, wireless network transmission module for data, remote receiving and monitoring and controlling platform. The human-computer interaction and storage module is in use for setting up each system parameter and starting up the system. The information acquisition module compares processed collected information with parameters setup by user; and through wireless network transmission module for data, the information acquisition module sends abnormal time and abnormal type of abnormal instance to the remote receiving and monitoring and controlling platform, which centralizes abnormal data, and carries out data analysis. Microprocessor, extended interface of human-computer, GSM/GPRS module system in low cost, power waste and high reliability are adopted in the invention. GSM/GPRS value added service provides function of testing aging degree of air compressor for facilitator.

The invention discloses a three-dimensional spatial vector based switch power amplifier of a magnetic bearing system. The three-dimensional spatial vector based switch power amplifier is a device for actively controlling current in a magnetic bearing coil, and mainly comprises a controller, an isolating driving circuit, a four-leg power main circuit, a current feedback detecting circuit, a signal conditioning circuit and a signal filtering circuit. According to a digital switch power amplifier, after the error of a current sampling value and a current desired value is calculated by using a controller and the real-time dead zone amendment is carried out, the PWM (pulse-width modulation) modulation based on a three-dimensional spatial vector is carried out; and furthermore, the on-off of power switch tubes in the four-leg power main circuit is controlled by using a PWM signal (obtained from the modulation) through the isolating driving circuit, so that the purpose of controlling the current of the magnetic bearing coil is achieved. According to the invention, the digital switch power amplifier which is applicable to the magnetic bearing control system is realized; the number of the power switch tubes and the amplitude of output ripple current are reduced; and the loss of an electromagnetic bearing is reduced.

The invention relates to a non-refrigeration infrared focal plane array driving control circuit integration design method which aims at overcoming the shortcomings that the existing non-refrigeration infrared focal plane array driving collection and temperature control circuit is complex in design, low in integration level and poor in flexibility. A field programmable gate array (FPGA) is utilized to achieve the non-refrigeration infrared focal plane array driving collection and temperature control circuit. The temperature control circuit enables all detection elements of the infrared focal plane array to be stabilized at reference temperature in the whole working process to improve the detection sensitivity of the infrared focal plane array. The FPGA logic control circuit is the core circuit for achieving driving, collection and temperature control of output signals of the whole infrared focal plane array, provides driving time sequence, collection time sequence and detector temperature control logic configuration time sequence of output signals of an infrared focal plane array detector to further process the follow-up infrared signals. The method has application and popularization value.

In a packet processor and a packet processor system for performing predetermined packet processing for an inputted packet in a packet relaying apparatus or the like, a packet data holder sequentially receives a packet from its head; an execution program holder holds a program in which a processing procedure of the packet is described; and a program execution controller determines a command number of a program to be executed based on a provided packet length and the program, and controls an execution of the program. Also, the program execution controller instructs the program execution controller of at least one of the packet processors at a preceding stage and a following stage of a command acquisition timing and a command acquisition position.

The invention relates to a space vector-based switching power amplifier for a purely-electromagnetic magnetic bearing system. The space vector-based switching power amplifier is a device for carrying out active control on current in a purely-electromagnetic magnetic bearing coil and mainly comprises a controller, an isolating driver circuit, a four-bridge-arm power main circuit, a current feedback detection circuit, a signal conditioning circuit and a signal filter circuit. According to the digital switching power amplifier, the controller is used for calculating an error between a current sampling value and an expected current value and then carrying out PWM (Pulse-Width Modulation) on the basis of space vector, and then on-off of a power switching tube in the four-bridge-arm power main circuit is controlled by the isolating driver circuit through the modulated PWM signal, and therefore the purpose of controlling the current of the magnetic bearing coil is achieved. The digital switching power amplifier disclosed by the invention is suitable for the purely-electromagnetic magnetic bearing control system and has the advantages of reducing the quantity of the power switching tubes and the amplitude of output ripple current and decreasing the loss of an electromagnetic bearing.

The invention provides a dynamic ad hoc network wireless communication device. The dynamic ad hoc network wireless communication device comprises a central processing module, a data processing module, a SDRAM (Synchronous Dynamic Random Access Memory) storage module, an integrated service interface management module, a modulation module, a demodulation module and a frequency conversion module, wherein the data processing module performs background encapsulation and data conversion on IP (Internet Protocol) data which need to be emitted based on an FPGA (Field Programmable Gate Array), and comprises a modulation mode signaling of a signal; and the central processing module manages an instruction of calling a program in the data processing module and performs lumped processing, issuing and control on the data based on a design of a central processing chip. The dynamic ad hoc network wireless communication device provided by the invention is based on an Ethernet IP communication design, and the same frequency is adopted to the data receiving and sending; besides, the dynamic ad hoc network wireless communication device has the advantages of being small in size, low in power consumption, convenient to use and flexible in networking.

The invention discloses a microwave power testing device based on a universal serial bus (USB) interface. The microwave power testing device comprises a casing, a circuit board support, a microwave sensor, an analog circuit board and a digital circuit board, wherein the analog circuit board and the digital circuit board are connected through a high-density connector, the analog circuit board comprises a chopping amplifying circuit, a rear-stage amplifying circuit, an analog-to-digital converting circuit, a zero calibration selection circuit and a temperature analog-to-digital converting circuit, the digital circuit board comprises a digital signal processing circuit, a USB interface circuit and a power source management circuit, and the digital signal processing circuit comprises a digital signal processor, a synchronous dynamic data storer, a flash memory program storage and a complicated programmable logic array chip. The microwave power testing device is compact in structure, small in size, light in weight and flexible in programming, adopts USB power supply, can be connected with computers with USB host interfaces or other electronic measuring instruments, can form a microwave power automatic testing system rapidly and is suitable for applications in places of laboratories, fields, production lines and the like.

Disclosed herein is a fully implantable artificial heart. The use of flat helical springs to align and reciprocate a bellows structure allows the bellows to pump blood, the multiple solenoids with floating magnetized rods and permanent magnet assemblies held by the flat helical springs provide the power. The artificial heart pumps blood with virtually no friction and no parts to wear out. The use of solenoids advantageously move blood in a gentle, controllable manner.

The invention discloses a CT bulb tube current control method. The method comprises the following steps that a central controller is provided, wherein the central controller obtains bulb tube mA value data with timestamp information according to the attenuation value of a scanned part; a processing module is provided, the processing module receives the mA value data output by the central controller and screens out effective mA value data within the setting time threshold value range; two adjacent effective mA value data are subjected to interpolation processing and caching, a high-voltage generator is provided, and the high-voltage generator controls CT bulb tube X ray dosage to be exposed. According to the CT bulb tube current control method, interpolation processing is conducted on the bulb tube mA value data which is issued by the central controller and has longer time intervals, the bulb tube mA value data having more time subdivisions in the scanning process is obtained, and high-precision real-time control over a CT bulb tube is achieved. Meanwhile, the invention further provides a CT bulb tube current control system and a CT imaging method.

The invention relates to a multi-level reactive compensation system suitable for an unbalanced load and a control method of the multi-level reactive compensation system and belongs to the field of thereactive compensation of electric power systems. According to the multi-level reactive compensation system, a convection circuit includes a direct current link and an inversion circuit which are connected in parallel; the direct current link comprises a plurality of direct current link circuit units which are connected in series; each direct current link unit comprises a switching tube S1, a switching tube S2 and a capacitor C1; the positive pole of the capacitor C1 is connected with the collector of the switching tube S1; the emitter of the switching tube S1 is connected with the collector of the switching tube S2; and the emitter of the switching tube S2 is connected with the negative pole of the capacitor C1. The number of switches and the number of grid drivers can be remarkably reduced compared with a cascade H-bridge structure, therefore, the system is easier to expand, and can effectively inhibit and eliminate harmonic waves in a reactive current compensation process.

The invention discloses a software and hardware collaborative compilation processing method and system.The system comprises an environment configurator, a command parser, a code filler, a scheduler and a heterogeneous target system, the code filler is used for obtaining a user source program path, reading source codes, recognizing the heterogeneous target system according to macro definition, complementing codes related to the heterogeneous target system and sending the codes to the scheduler; carrying out primary filling and secondary filling on the source code; the scheduler is respectively used for realizing compiling scheduling and executing scheduling functions; the heterogeneous target system is used for compiling and processing user modal data and comprises at least two heterogeneous target subsystems; each target subsystem comprises a middle-end compiler related to the target, a back-end compiler and a running environment related to the target. According to the invention, mutual switching and cooperative processing of the network data packets between the soft and hard switches according to actual service requirements can be realized, and high-level data packet processing efficiency is ensured while deep programming of network element equipment is realized.

The invention discloses a method for processing ultralow frequency data, belonging to the technical field of the acquisition and processing of ultralow frequency electromagnetic signals. The method comprises the following steps: a digital signal processor (DSP) is used to perform parallel reading to ultralow frequency detection data; the data which is carried out multiple repeated detections, at the same measuring point and under the same parameters are superimposed and is performed wavelet denoising; and after the wavelet denoising processing, envelope filter processing is performed to the data to obtain result data. The method of the invention uses the DSP to realize the ultralow frequency data processing algorithm which contains filter processing and denoising processing, has the advantages of high algorithm parallelism degree and fast iterative process, and can realize more efficient ultralow frequency data processing and obtain the processing result with high signal-to-noise ratio.

The invention discloses a multipurpose flexible materialization programming module, and refers to a materialization subprogram editor facing program control object jointing, wherein the materialization subprogram editor can program control more than two motions; the program control object is provided with a plurality of response portions corresponding to motions, and a main control board; specifically, the materialization programming module is provided with mutually related a motion editing board, an instruction module, a micro-control board and an interactive data interface thereof; the motion editing board is provided with hand-operated regulation and control portions corresponding to one response portion and with matched number, a positioning deposit portion, and a motion recording portion; the hand-operated regulation and control portion can modulate and locate response portions; the positioning dwell vessel can respectively record a data set of all response portions under each position state of the program control object; the motion recording portion can select the data set of a plurality of positioning dwell vessels, and a time-delay instruction is combined, edited and integrated so as to form a subprogram program controlling object motions in the storage portion. The multipurpose flexible materialization programming module can improve program control object control efficiency and directness, and can prevent programming language abstraction defects.

The invention provides a single probe microwave power measuring device with a display; the single probe microwave power measuring device comprises a simulation circuit and a digit circuit; the simulation circuit comprises a power sensing circuit, a pre-stage amplification circuit, a rear stage amplification circuit and an analog to digital conversion circuit; the simulation circuit is used for sensing and modulating power signals, and carrying out analog-to-digital conversion; the digit circuit comprises a digit signal processor, a temperature detection circuit, an OLED display circuit, a power source management circuit, and a USB interface circuit; the digit circuit is used for calibrating and compensating power test data, controlling the whole machine, and managing the power source. The USB interface supply is realized, so the measuring device is compact in structure; the single probe can be held by hand, is light in weight, and the shape is similar to a normal power probe matched with a power measuring host; an OLED display is arranged on the housing, and the measuring result can be read through the machine body OLED display under the condition in which only +5 V DC power source is provided.

The invention discloses a 16-bit multibus circuit in a 2 in 3 or 2 in 2 control system. The 16-bit multibus circuit in the 2 in 3 or 2 in 2 control system is characterized in that the system comprises three master modules and a bus arbitration application/release circuit. Each master module comprises a central processor, a programmable logic apparatus, a memory and a bus external interface which are independent. The program logic apparatus in each master module is electrically connected with the central processor, the memory and the bus external interface in the master module respectively. The program logic apparatuses in the three master modules are electrically with the bus arbitration application/release circuit respectively. Under a condition of same-level processor and due to the 16-bit multibus circuit in the 2 in 3 or 2 in 2 control system provided by the invention, the work efficiency and the operating speed of the system are improved, the device loss is reduced, the service life of the device is prolonged and the sending of incorrect commands is effectively prevented.

The invention discloses a clock system with a synchronization function and a synchronization implementation method thereof. The system comprises a reference switching module, a first phase-locked loop circuit, a second phase-locked loop circuit, a frequency division and delay module and a control module, wherein the reference switching module is used for switching internal and external reference signals; the first phase-locked loop circuit is connected with the reference switching module and is used for generating a reference signal with a higher frequency; the second phase-locked loop circuit is connected with the first phase-locked loop circuit and is used for generating a basic time base signal; the frequency division and delay module is connected with the second phase-locked loop circuit and is used for performing frequency division and delay processing on the basic time base signal and then outputting various types of clocks; and the control module is connected with the reference switching module, the first phase-locked loop circuit, the second phase-locked loop circuit and the frequency division and delay module, and is used for controlling and setting parameters. The system disclosed by the invention is simple in circuit design, flexible in programming, small in size, light in weight, low in cost, low in power consumption and easy to implement.